{"instruction": "You are an expert in event argument extraction. Please extract event arguments and their roles from the input that conform to the schema definition, which already includes event trigger words. If an argument does not exist, return NAN or an empty dictionary. Please respond in the format of a JSON string.", "schema": [{"event_type": "potential therapeutic event", "arguments": ["Effect", "Treatment.Disorder", "Subject.Age", "Combination.Drug", "Treatment.Route", "Subject.Population", "Subject.Race", "Subject", "Treatment.Dosage", "Treatment.Time_elapsed", "Subject.Disorder", "Treatment", "Treatment.Drug"]}], "input": "Ritonavir can inhibit the metabolism of fentanyl significantly, so caution should be exercised if fentanyl is given to patients receiving ritonavir medication."}
{"potential therapeutic event": []}